When I drive in "D" my CEL "check engine light" will come on, but it will not do it if I keep the truck in "4". It is as if I am not getting a high enough RPM to run efficiently and the sensor trip the code "P0430". I can drive all week in town in 4, and the CEL never trips, but it is in town...
So I have an 08 Fj Cruiser with 178k miles on her. No issues for the most part, I’ve had to do a tune up, and replaced the struts/cv boots, mostly routine stuff.
I’ve had the reoccurring issue with the Check engine light and all those lights that go off w it. Every time I get it...
installed CAi (Airaid) Dry filter
2 months later engine and TRAC OFF light come up on dash.
Read up on some forums that it was just the gas cap failing to seal the vacuum.
Dealer pulled code "P0112 Intake Air Temperature Circuit Low Input "
I cleaned the Air Intake Temp Sensor and...